Overflow Tank
Thread Starter
Intermediate
Joined: Oct 2010
Posts: 42
Likes: 0
From: Blind Bay British Columbia
Overflow Tank
Hi Guys, thanks for the info on installing an overflow tank on my '76 small block. I'm not sure if I need a special rad cap or not... you know the kind with the arrow lined up with the overflow spout on the neck. The car is a nice cruiser now with new 600 Holley on a Edelbrock performer aluminum intake, new Mallory HEI distributer and leads, and a
set of Delta 40 flowmasters.. It's a L82, so it least it has 4 bolt mains if I want to go with aluminum heads and lumpier cam.
set of Delta 40 flowmasters.. It's a L82, so it least it has 4 bolt mains if I want to go with aluminum heads and lumpier cam.
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
For a gen-yoou-wine NCRS cap, yes. The one in the pic is available at Corvette Central for $10.25
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
and probably your local GM dealer.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
and probably your local GM dealer.
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
The last AC Delco GM official replacement radiator cap I bought... was made in India 
.. and it leaked right out of the box. I have been using a generic cap for years now. It might be a Stant. I do like it because it doesn't have any big logos on it. Doesn't look original, but doesn't scream "ugly" either. 
dang! Guess I have had it for 8 years!! the picture link is dead
http://forums.corvetteforum.com/1544430496-post1.html
.. and it leaked right out of the box. I have been using a generic cap for years now. It might be a Stant. I do like it because it doesn't have any big logos on it. Doesn't look original, but doesn't scream "ugly" either. dang! Guess I have had it for 8 years!! the picture link is dead
http://forums.corvetteforum.com/1544430496-post1.html
Last edited by PRNDL; Aug 1, 2011 at 01:08 PM.
